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August 2, 2015

Homework Help: physics

Posted by gigi on Tuesday, September 13, 2011 at 6:28am.

A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 85.0 km/h, 12.0 min at 95 km/h, and 35.0 min at 30.0 km/h, and spends 35.0 min eating lunch and buying gas. Determine the average speed for the trip?

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